Dec 22 (Reuters) - Biogen Inc :
* Says separation of Bioverativ as independent company expected to be completed on February 1, 2017
* Biogen Inc - Nasdaq has advised that Nioverativ common stock will begin trading on a "when-issued" basis under symbol "BIVV WI" on Jan 12, 2017
* Biogen Inc - Nasdaq has approved listing of Bioverativ common stock on Nasdaq Global Select Market under symbol "BIVV"
* Biogen announces effectiveness of Bioverativ Form 10 registration statement
* Says Bioverativ common stock approved for listing on Nasdaq Global Select Market Source text for Eikon: Further company coverage: